Index: trunk/ippTools/src/camtool.c
===================================================================
--- trunk/ippTools/src/camtool.c	(revision 23688)
+++ trunk/ippTools/src/camtool.c	(revision 23809)
@@ -174,4 +174,25 @@
     // data out so we have the option of changing these values or leaving the
     // old values in place (i.e., passing the values through).
+
+    // if end_stage is warp (or NULL), check for valid tess_id
+    for (long i = 0; i < psArrayLength(output); i++) {
+        psMetadata *md = output->data[i];
+
+        bool status;
+        char *end_stage = psMetadataLookupStr(&status, md, "end_stage");
+	if (end_stage && strcasecmp(end_stage, "warp")) continue;
+
+        char *raw_tess_id   = psMetadataLookupStr(&status, md, "tess_id");
+	if (raw_tess_id || tess_id) continue;
+
+        char *label  = psMetadataLookupStr(&status, md, "label");
+        psS64 exp_id = psMetadataLookupS64(&status, md, "exp_id");
+
+        if (!status) {
+	    psError(PS_ERR_UNKNOWN, false, "cannot queue analysis to WARP without a defined tess id: label: %s, exp_id %" PRId64, label, exp_id);
+            psFree(output);
+            return false;
+        }
+    }
 
     // loop over our list of chipRun rows